Remote I/O Systems
What is remote I/O?
Modular remote I/O systems transmit process data from safe or explosion hazardous areas by connecting binary and analog sensors and actors to the control system via a bus interface.
You can connect 4 mA … 20 mA devices to remote I/O, including water flow transmitters, valve positioners, pressure transducers, or temperature transmitters. Devices such as thermocouples, resistance temperature detectors (RTDs), mechanical contacts, and visual or audible alarms may also be connected. Our remote I/O systems are compatible with network protocols like PROFIBUS DP, MODBUS RTU, MODBUS TCP/IP and FOUNDATION fieldbus.
Typical applications for remote I/O systems
Remote I/O is ideal for use where your application is located in explosion hazardous areas or harsh industrial environments like marine and outdoors. Typical applications include oil and gas (onshore and offshore), pharmaceutical, chemical, waste water, food and beverage, and others.
Why use remote I/O?
Remote I/O systems are characterized by high functionality and simple handling. Remote I/O is the right choice when you want to put isolated barriers (I/O modules) close to the field devices.
This means that you reduce wiring, because the system is installed close to the field devices, and just one fieldbus cable is used from the remote I/O system to the distributed control system. Due to the reduced wiring effort, you not only save cables, but also time, money, and work effort. Hence, Remote I/O can be installed in a decentralized location inside hazardous areas.
- Remote I/O can be used in explosion-hazardous areas
- Only one communication line from DCS to Remote I/O necessary (e.g. PROFIBUS DP, MODBUS RTU and MODBUS TCP/IP)
- Control and monitor sensors and actors from the control room
- Wiring to field devices can remain in case of modernization
FB Remote I/O for Zone 1
FB Remote I/O stations are mounted in hazardous areas Zone 1 or Zone 21. They form a modular signal conditioning system to interface signals from the field with a control system in the safe area. FB Remote I/O connects your conventional sensors and actuators to your DCS using a single standardized fieldbus connection (PROFIBUS, Modbus, Ethernet and others).
The plug-in input and output modules can be hot swapped in a running system without the need for a hot work permit.
There is a wide spectrum of single and multi-channel I/O modules available offering intrinsically safe and increased safety field connections. This ensures that engineering becomes easy and adaptable to the needs of your plant concept.
- Mounting / maintenance without hot work permit
- I/O modules for Ex i (intrinsic safety) and Ex e field connections
- I/O modules can be mounted on the backplane in any order
- 1 – 8 channel I/O modules
- Standard Busses (PROFIBUS, Modbus, Ethernet …)
- Configuration can be accomplished via the bus
- HART communication available
- Optional redundancy for bus, gateways, and power supplies
- Supports the FDT concept
- Bus independant SIL 2 shut down outputs available
- FATs and GAMP4 FATs optional
LB Remote I/O for the safe area and Zone 2/Class I, Div. 2
LB remote I/O stations are mounted in hazardous areas Zone 2 or Class I, Div. 2 or Zone 22 or in the safe area. They form a modular signal conditioning system to interface signals from the field with a control system in the safe area. LB Remote I/O connects your conventional sensors and actuators to your DCS using a single standardized fieldbus connection (PROFIBUS, Modbus and others).
There is a wide spectrum of single and multi-channel I/O modules available offering intrinsically safe and safe area field connections. This ensures that engineering is easy and adaptable to the needs of your plant concept.
- I/O modules for Ex i (intrinsic safety) and safe area field connections
- I/O modules can be mounted on the backplane in any order
- 1 – 8 channel I/O modules
- Standard busses (PROFIBUS, Modbus, Ethernet …)
- Configuration can be accomplished via the bus
- HART communication available
- Optional redundancy for bus and power supply
- Supports the FDT concept
- Bus independent SIL 2 shut down outputs available
- FATs and GAMP4 FATs optional